Published September 6, 2022
| Version v1
Publication
Super-Gain-Boosted AB-AB Fully Differential Miller Op-Amp With 156dB Open-Loop Gain and 174MV/V MHZ pF/µW Figure of Merit in 130nm CMOS Technology
Description
A fully differential Miller op-amp with a composite input stage using resistive local
common-mode feedback and regulated cascode transistors is presented here. High gain pseudo-differential
auxiliary amplifiers are used to implement the regulated cascode transistors in order to boost the output
impedance of the composite input stage and the open-loop gain of the op-amp. Both input and output stages
operate in class AB mode. The proposed op-amp has been simulated in a 130nm commercial CMOS process
technology. It operates from a 1.2V supply and has a close to rail-to-rail differential output swing. It has
156dB DC open-loop gain and 63MHz gain-bandwidth product with a 30pF capacitive load. The op-amp
has a DC open-loop gain figure of merit FOMAOLDC of 174 (MV/V) MHz pF/µW and large-signal figure of
merit FOMLS of 3(V/µs) pF/µW.
Abstract
Article number 9400400Abstract
Consejería de Economía y Conocimiento of Junta de Andalucía P18-FR-4317Abstract
Consejo Nacional de Ciencia y Tecnología (España) A1-S-43214Abstract
Agencia Estatal de Investigación TEC2016-80396-C2Additional details
Identifiers
- URL
- https://idus.us.es/handle//11441/136802
- URN
- urn:oai:idus.us.es:11441/136802